MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Cerebral hemispheres
The two halves of the cerebrum, the largest part of the brain.
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- Syndrome, piriformis Irritation of the sciatic nerve caused by compression of the nerve within the buttock by the piriformis…
- Base, pressor A pressor base is a substance chemically classified as a base (or amine) that is capable of raising the blood…
- Toxic shock See Toxic shock syndrome
- Portal vein A large vein that carries blood from the stomach and the intestines to the liver. The portal vein is formed…
- Joint, atlas and axis The joint between the atlas and axis bones. The atlas is the first cervical (neck) vertebra which is just…
- Mastectomy, double Removal of both breasts
- Asbestosis A condition featuring scarring of the lungs caused by inhaled asbestos fibers. Asbestosis is irreversible. It…
- Jackson Laboratory The premiere place for mouse genetics and the largest mammalian genetic research facility in the world. Many…
- Ninth cranial nerve The ninth cranial nerve is the glossopharyngeal nerve. The 12 cranial nerves, the glossopharyngeal nerve…
- Tunnel vision Loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like…